Goveenoe foe steam engines



t e e h S W e e h S 2 L E B E V m .(No Model.)

GOVERNOR FOR STEAM ENGINES.

' Patented Mar. 19, 1895.

WlTN ESSES s PETERS no moroumuuwnsummu, n. c..

2 e e h S .m. e e h 8 2 S E N I G N .3 MM BE ES 3 0 V N R E V 0 G (Nomm.

' Patented Mar. 19, 1895.

INVENTOR c\ wrrusssss Tu: ugnms mans co momumm, msnmurqu a iron STAT-Es"FPA ENT GF CE.

JOHN V; EBEL, OF PITTSBURG, PENNS YLVANIA, ASSIGNOR OF TWO-THIRDSTOGEORGE E.- LORCI-I AND LOUIS LOROI-I, JR OE SAME PLACE.

GOVERNOR FORSTEAM-ENGINES. I

SPECIFICATION forming part of Letters Patent No, 536,137, dated March19, 1895;

Application filed V-I une '7, 1894. Serial No. 513,769. (No model.) 7

To all. whom it may-concern: k -lubrication,together withimproved meansfor Be it known thatI, JOHN V; EBEL, a citizen automatically governingthe supply of steam of the United States, residing at'Pittsburg, in tothe valve in a novel and simple manner.

the county of Allegheny and State of Pennsyh Iii-general, the engineconsists of the cylin- 5 vania,-have invented or discovered a new andder and valve chest, rigidly mounted on posts useful Improvement inGovernors for Steamand secured by upright rods passing through Engines,of which the following is a full, clear, the posts and screwed intothe.lower case, in and exact description, reference being hadto whichare contained the crank disk and valve the accompanying drawings,forming part of actuating mechanism; the piston rod and ec- 1o thisspecification, in which+ centric rod being etnbraced'in stuffing boxes 1Figure'Lis a vertical sectional view of a above and below, and makingdirect connecsteamengine embodying myinvention, the tions, while theworki g partsinclosed e section being taken on the line I, I, "of Fig.2. case revolve in a bath ofoil maintained'at a Fig.2,isasimilarsectio'n,at right angles toFig. vfixed level within the oiltight case. A '15 1, the section being-taken onthe line II, II,'of Italso. consists in certain features of th ,Fig. 1. Fig. 3, is a crosssectional view, taken governing mechanism as shall be hereinafter ontheline III, III, of Fig. 1, illustrating the described and claimed. Iactuating mechanism of the governor. Fig. 4, Referring now to thedrawings, 2, is the oil is a-face view of the crank disk. Fig. 5, is atight case secured to the foundation by the 7.: 2o sectional viewthrough the crankdisk, eccenbolts 3, and provided on its front with theretrio and bearing, the section beingtaken on movable plate 4, in whichis-moun'ted the glass the line V, V, of Fig. 4. Fig. 6, is a detachedcenter 5. detail view'of the automatically adjustable 6 6. are hollowposts, supporting the lower 4 eccentric and the surrounding yoke of theeccylinder head 7, and passing through the 2 5 centric r'o'd. .Fig. 7,is a view of the crank posts are the upright rods 8. 8. tapped into thedisk, similar to Fig. 4, taken from the opposite top-0f the lower casingand extendingup on side, the shaft being shown in section. ".Fig. eitherside of the cylinder 9, through lugs 10, 8, is a face view oftheinterior of the eccen on each side of the upper cylinder head 11, triocase, one of the shields beingremoved, and provided at their tops withthe nuts 12.380 0 and illustrating the shaft in section, the sur- 12.The cylinder and its two heads fit closely rounding hollow spindle,carrying the true and when the nuts 12 are turned down, it eccentricillustrated in Fig. 10, and the eccenwill be seen that the variousparts' will be trio ring attached by a pinto the outer surdrawn closelyandtightly together, forming a rounding shields. Fig. 9', is a detailview in :Very compact, durable, and rigidconstruction. 3 5. perspectiveof oneof the shields or sides of Attached to the side of the steamcylinder the eccentric case. Fig. 10, is-a detail view 9, is-the. usualvalve chest 13, fitted with the in perspective of the hollow spindle,showing supply and exhaust-pipes 14, 15, and the balthe manner inlwhichthe actuating pinion and anced valve 16, the stem'17, of which passestrue eccentric are "constructed. Fig. 11, is a down through the stuffingbox- 18 to the ad- 0 4o detailviewin perspective ofthe eccentric ring,justable connection 19, by means of which it .Fig. 12, is a crosssectional view taken onthe is attached to the eccentric rod 20. line'XII, XII,'of Fig.5. 21 is the pistoh, therod 22 of which makes Likenumerals and letters of referenceirefer direct connection to the crankdisk B, passto like parts wherever used, throughout this ing downthrough the stuffingbox 23 in the 45 specification. I lower cylinderhead and a similar stuffing'box My invention consists inanimprovement'24 located in the upper part of the case 2 in direct'acting steamengines, and has for its Connection with the crank disk B and its pinobject the construction of this class of en- 1) is made by means of thehorizontal yoke 25, Y gines in such a manner as to secure in the securedto the lower end of the piston rod, 100. j 50 highestdegree thedesirable qualities of siuicarrying the box 26 embracing the pin 1), andplicity, cheapness, efficiency, and a thorough which is free to slide inthe horizontal slot of V I g V i V x the yoke, the connection and itsoperation being in the manner well understood in devices of thischaracter. The yoke slides against,

. and is guidedin its up and down movement by the slides 27, 27, heldagainst the studs 28 by the countersunk headed bolts 29 and nuts 30, thestuds 28 being capable of being set in or out to adjust for Wear, andlocked by lock nuts 31, which also prevent leakage of the oil. The yokeis further held against lateral movement by hearing against the frontinside face of the case and the boss on the crank disk respectively. Thechamber formed in the inside of the case is kept full of oil up to theline a, a, thus insuring thorough lubrication of all the parts insidethe case.

A is the main shaft of the engine, bearing in the pillow block 32 and towhich is rigidly secured the pulley wheel 33.

I shall now describe the automatic governor and the means for actuatingit. i

As has already been described, the valve stem 17 is adjustably connectedto the eccentric rod 20, carrying a yoke 34 which embraces the eccentriccase and is operated thereby. The eccentric case consists of two halves35 and 36, surrounding the eccentric proper 37, and by which therelation of the centers of the eccentric case to the center of theshaft, is regulated. When in position, as shown in the drawings, thiscase is also |naintained against lateral movement by bearing against thecrank disk and side of the chamber respectively. The true eccentric'37is formed integral with the hollow sleeve 38, surrounding the shaft A,supported Within the bearing 39, which is bolted to the sides of thechamber 2, and extending beyond it and furnished with the pinion 40,keyed on.

41, 41, are segmental pinions pivotally attaohed at 42 to arms of thepulley wheel 33 by bolts 43, and having outwardly extending arms 44;fitted with adjustable weights 45. The segmental pinions 41 are in meshwith the pinion 40, and when, by reason of the motion transmittedthrough the centrifugal action of the weights in the well known mannerof this class of governors, the segmental pinions will cause the pinion40 to revolve on the shaft A, and, when set as shown in Fig. 3 of thedrawings, the wheel revolving as indicated by the arrow, the pinion, andconsequently the spindle, will be caused to move upon the shaft in thedirection indicated by the double arrows in Fig. 12.

As clearly shown in the various views, the eccentric is formed integralwith the spindle and will of course-move in exact proportion.

to the motion of the pinion. It is surrounded by the closely fittingring 46 provided at one end with the lug 47, through which'passes thesei'ew 4S connecting the ring with the two outer shields in such amanner t at otion of the eccentric will betransmitted to em. On theouter end of the screw 48, is mounted a roller 49, the purpose 0 hich isto mainmm the pivotal connection of the eccentric,

the spindle 38 at each side of the eccentric 37, thus aiding in guidingthe motion of the eccentric shields 35 and 36. It will be evident, also,that motion of the crank disk will be transmitted, by means of the .sideof the slot bearing against the roller, to the eccentric case, and itwill operate in all respects on the yoke and eccentric rod, in the samemanner as an ordinary eccentric. Thus, when the weights 45 are thrownout, due to increased speed of the engine, the throw of the eccentricwill be proportionately lessened, resulting in decreased travel of thevalve and quicker cut-off.

A return of the various operative parts to a normal position is securedin a novel and highly effective manner.

Referring to Fig. 12, it will be seen that when the spindle is revolvingin the direction of the double arrows, within the stationary bearing 39,there will be a constant friction tending to retard the revolution ofthe spindle and operating through the pinion 40 on the segmental pinions41 and Weights 45, will cause them to seek to return to their normalposition as soon as the reduced speed of the engine will allow suchfrictional effect to overcome the centrifugal action of the weights.Inasmuch as the entire weight of the shaft and pulley with itsaccompanying parts is borne by the hollow spindle 38 resting in thebearing 39, this frictional contact will be considerable, and will tendto increase the binding action on the spindle, and to return the weightsto their normal position. By setting the weights in or out, the desiredspeed of the engine may be readily regulated. I am thus enabled todispense with the usual springs commonly employed on governors of thisclass, as I have found the engine to give most satisfactory results whenconstructed and operated as I have described.

When it is desired to reverse the engine, all that is necessary is totake out the bolts 43, reverse the segmental pinions 41 when they willassume the position indicated by dotted lines in Fig. 3; and to changethe roller from the slot 50 in the crank disk to the correspond ing slot52, shown in Fig. 7, the relation of both slots to the crank pin shouldhe the 5M6, and their position, in regard to it will regulate the pointofcut-off of the steam.

Changes and modifications may be made in the location and arrangement ofparts by the skilled mechanic without departing from my invention, asfor instance, the eccentric and case may be located outside the chamberof tam I the engine, it being only necessary that" the spindle shouldrevolve in a fixedbearing, in order to accomplish the desired result ofcounteracting the effect of cen'trifugal action on the weightsandreturning themto a normal 7 position. The improved governor may beapplied as well to a horizontal or other type of engine where theconditions are equally favorable, with as good results as I have foundin the typeI have illustrated. It has been found in practice to give theresults sought for, in a highly successful and beneficial manner; is

capable of developing the highest efficiency of the steam,andfurthermore, the engine is very simple, of few parts and not liableto get out of order. It is easy and cheap to construct and keep inrepair, and requires little or'no attention for lubricating.

Having described my invention and in what mannerit operates,what Iclaim, and desire to secure by Letters Patent, is.

1. In a steam engine, a hollow spindle surrounding the main shaft andinclosed within a fixed bearing capable of being revolved on the mainshaft by 'centrifugally controlled segmental gearing, pivoted to thedriving Wheel, carrying weighted arms and in mesh with gear teeth at oneend of the hollow spindle, the

spindle being retarded by friction against the inside of the fixedbearing, in combination with an eccentric valve operating mechanism,surrounding an eccentric forming apart of the hollow spindle andconnected by an eccentric rod with the valve, substantially as shown anddescribed.

2. In a steam engine, steam supply governing mechanism consisting of acentrifugally controlled hollow spindle, surrounding the main shaft andinclosed within a fixed bearing, provided with an eccentric inclosed ina ring having a lug, through whichpasses a pin securing the lug to outersurrounding circular halves constituting a wheel capable of being seteccentric to the true center of the shaft, by'the rotation of thespindle and eccentric,

and mounted internally within a yoke attached to the valve rod of thevalve, the halves of the wheel having elongated apertures surroundingthe spindle and allowing of adjustment relative thereto, and the pinconstituting a screw, tapped into one of the halves and being providedat the other end with a roller which enters a radial slot in thecrankdisk, and is capable of being revolved thereby,

substantially as shown and described.

3. In a steam engine, toothed wheels, or segmentsof wheels, pivotallyattached to arms of a Wheel secured to the main shaft, provided withweighted arms, capableof rotation due to centrifugal force, meshing intoa pinion on one end of ahollow spindle surrounding the my hand this 28thday of March, 1894.

. JOHN V. EBEL.

Witnesses:

PHILIP Y. PENDLETON, C. M. CLARKE.

